package it.unibo.imola.gui;

import java.io.File;
import java.net.URL;
import java.util.Properties;

import org.apache.log4j.PropertyConfigurator;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

	private static BundleContext context;

	static BundleContext getContext() {
		return context;
	}

	// The plug-in ID
	public static final String PLUGIN_ID = "it.unibo.imola.gui"; //$NON-NLS-1$

	// The shared instance
	private static Activator plugin;

	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
	 * )
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		
		
		Activator.context = context;
		Properties log4jProperties = new Properties();

		URL log4jConfFile = getContext().getBundle().getResource("logging/log4j.properties");
		if (log4jConfFile == null)
			log4jConfFile = new File("logging/log4j.properties").toURI().toURL();
		if (log4jConfFile == null)
			throw new RuntimeException("Unable to find the \"logging/log4j.properties\" resource");
		log4jProperties.load(log4jConfFile.openStream());
		log4jProperties.setProperty("log4j.appender.fileout.File", "output-" + System.currentTimeMillis() + ".log");
		PropertyConfigurator.configure(log4jProperties);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
	 * )
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 * 
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}

	/**
	 * Returns an image descriptor for the image file at the given plug-in
	 * relative path
	 * 
	 * @param path
	 *            the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
}
